What is the range of the function f(x) = 3.2x for the domain {-4, -2, 0, 2, 4}?

A.
{-12.8, -6.4, 0, 6.4, 12.8}

B.
{12.8, 5.5, 0, -6.4, -12.8}

C.
{0, 6.4, 12.8, 19.2, 25.6}

D.
{-12, -6, 0, 6, 12}

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.